Drill bit holder



FIG. 1 is a front perspective view of a drill bit holder showing my new design, the broken line showing of drill bits is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a front elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a rear elevational view;

FIG. 6 is a bottom plan view; and

FIG. 7 is a left side elevational view. 

The ornamental design for a drill bit holder, as shown and described. 